High power high linearity digital phase shifter
US8411795B2 · kind B2 · utility
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5References
3Claims
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Key dates
| Filing date | Sep 18, 2008 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Apr 12, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/18
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A digital phase shifter suitable for high power RF applications is disclosed. A plurality of MEMs switches selectively couple delay lines into the RF signal path providing adjustable phase shift under digital control. 90 degree hybrid combiners on either side of the MEMs switches allow two signal paths to be used in combination to provide a desired number of phase shift steps with a reduced number of delay lines and switches and with lower power level on each path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.